Psoriasis is a chronic, inflammatory skin disease that generally appears as patches of raised, reddish skin covered by a flaky white buildup. These patches, or plaques, frequently form on the elbows, knees, lower back, and scalp. However, the plaques can occur anywhere on the body.
While psoriasis cannot be cured, a number of treatment options can help control psoriasis. These include topical treatments, ultraviolet (UV) light therapy and oral medications.